Disk harrow



No. 6l3,092. Patented Oct. 25, I898.

A. B. THIELENS.

DISK HARROW.

(Application filed Mar, 11, i898.) (No Model.) 2 Sheets-Sheet l.

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no. 6|3,092. Patented Oct. 25, I898. A. B. THIELENS.

DISK NARROW.

(Application fllad In. 11, 1898.) (No Model.) 2 Sheets-Sheet 2.

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ALEXIS B. TIIIELENS, OF PEORIA, ILLINOIS, ASSIGNOR TO THE EMERSONMANUFACTURING COMPANY, OF ROCKFORD, ILLINOIS.

DISK HARROW.

SPECIFICATION forming part of Letters Patent No. 613,092, dated October25, 1898.

Application filed March 11, 1898. Serial No. 673,527. (1% mod l.)

To all whom it may concern:

Be it known that I, ALEXIS B. THIELENS, a citizen of the United States,residing at Peoria, in the county of Peoria and State of Illinois, haveinvented certain new and useful Improvements in Disk Harrows, of whichthe following is a specification.

The object of this invention is to construct a disk harrow in which twogangs are employed, each gang having an adjusting-lever and meanswhereby both gangs can be adjusted by one of the levers.

The further object of this invention is the manner of supporting thescrapers and in the scraper having a portion extending beyond the rearedge of the disk, thereby preventing stalks from being carried aroundwhen they are not cut through and stick on the edges of the disks.

In the accompanying drawings, Figure 1 is a plan view of myimprovedharrow. Fig. 2 is a rear elevation. Fig. 3 is a lengthwisesection showing the partsas a double-lever machine. Fig. 4 is a similarview in which the, parts are in the position for use as a single lever.Fig. 5 is a transverse section showing the sliding head. Fig. 6 is anelevation of the lever for moving the scraper. Fig. 7 is a transversesection of the tubular end casting and the support for the outer end ofthe scraper-bar.

The main frame consists of the tubular center section 1 and the tubularend sections 2, secured to the main section, having their ends taperingand connected to a support 3, within which is located the rod 4,connecting the disks 5 of a gang, the disks being held sepa rated by thespools 6, and all of the disks of a gang rotatable together in the usualmanner.

Upon the rod connecting the disks of a gang and between the two innerdisks of each gang is located a support 7, having a forward extension 8,provided with two vertical openings 9 and 10 and a projection 11,extending rearwardly and upwardly.

A frame supporting the gang-adjusting levers consists of the twoforwardly-extending L-shaped bars 12, connected at their forward or freeends by a cross-bar 13, and their rear ends are bolted to the under faceof the center tubular portion 1 of the main frame.

These L-shaped bars are connected to a crossbar 14, having eyes 15extending from each end thereof. A brace-rod 16, passing through anopening 17 in the tubular castings of the main frame, extends diagonallyforward and passes through the eyes 15, receiving a nut 18 on itsprojecting screw-thread ed end, the head of the rod resting against therear face of the tubular casting, thus forming a rigid connectionbetween the main frame and lever-supporting frame.

To the upper face of each of the L-shaped bars is secured a toothedsegment 19, and to each segment is fitted a hand-lever 20, having theusual thumb-lever 21 and spring-actuated dog. Each lever has aconnectionwith its gang by a link 22, connected to the lower end of the lever, andits other end bent in hook form and inserted in the forward hole 9 inthe extension 8.

A head 23 is located between'the L-shaped bars 12 and supported therebyin a manner to slide in the lengthwise direction of the bars. From theunder face of this head depend two ears 24, between which is pivotallysecured a link 25, and from the under face of this head extend two arms26, each terminating in a rectangular eye 27.

To each of the extensions 8 is pivotally connected a rectangular bar 28,extending upward and forward, having its free end located in therectangular eye 27, which acts as its guide.

The L-shaped bars 12 support two rollers 29, one located outside ofeachbar near the main frame and located over the horizontal portion of thebars 28, thereby holding the inner ends of the gangs down and permittingof their adjustment.

To the extension 11 is secured an arm 30, connected to the verticalportion of the arm 28 by a link 31. The upper end of the arm 30 supportsa bracket 32, to the upper end of which is pivoted a hand-lever 33,provided with a perforated car 34. The upper end of the bracket has twoprojections 35, against which the projection 36 of the hand-lever comesin contact, forming a stop for each extreme end of its movement. Thisbracket has an opening 37, extending in the lengthwise direction of thegang. From the rear of the brackets is located a channel-iron bar 45, towhich scrapers 46 are connected, and a rod 47 forms a connection betweenthe channel-iron bar 45 and the eye 34 of the handlever 33. The scrapershave a section 48, which extends beyond the rear edge of the disks,which prevents stalks from being carried around when they are not cutthrough and stick on the edges of the disks.

When the hand-levers are in the position shown in Figs. 1, 2, and 3 ofthe drawings, each lever will have a connection with its gang by whichthe gang can be adjusted'and held when adjusted. The outer end of thegangs being supported by their connection with the depending portion ofthe tubular castings forming a part of the main frame, their inner endsare held down by the bars 28, resting against the rollers 29, and a pin49 is placed through the bars 28 outside of their support 2'7, whichprevents the bars from becoming disengaged from their support.

By removing the rods 22 from a connection between the hand-lever andgangs and connecting one of the levers by the link 25 with the earsdepending from the under face of the sliding head and placing pinsthrough the bars 28 at the rear face of their supports 27 a connectionis made between one lever and both gangs through the sliding head andbars 28, by which both gangs can be adjusted in unison, the pins 49 and50 forming the connection between the bars 28 and the sliding head, asshown in Fig. 4.

The scrapers are connected to their support and the support guided inbrackets. The levers connected to the scraper-supports are pivotallysupported by a bracket in such a manner as to move the scrapers upagainst the disks or away therefrom and lock, them in either position.

It will be noticed that one end of the bar supporting the scrapers issupported at one end by the tubular end castings of the main frame andthe other end by the disk gang. Itis evident that in adjusting the gangsthe distance between the supports of the scraperbar will be changed, andto permit of this movement the ears 38 are provided with the elongatedopenings 39.

I claim as my invention 1. In a disk harrow, the combination of asupportingframe,two disk gangs,two toothed segments, two adjusting-levers and means for forming a connection between the levers andthe gangs or between one of the levers and both gangs.

2. In a disk harrow, the combination of a main frame, an auxiliary frameconnected to and extending forward of the main frame, a head having asliding engagement with the auxiliary frame, a hand-lever supported bythe auxiliary frame having a connection with the sliding head, two diskgangs supported at their outer ends by the main frame and a connectionbetween their inner ends and the sliding head.

3. In a disk harrow, the combination of a main frame, two disk gangsconnected at their outer ends to the main frame, a bracket connectedwith the main frame having a movable engagement therewith, a bracketextending from the disk gang, a bar supported to move in the brackets,scrapers supported by the bar and a pivoted lever having a connectionwith the bar for moving the scrapers toward and from the disks.

4. In a disk harrow, the combination of a main supporting-frame, twodisk gangs connected at their outer ends to the main frame, a bracketconnected with the main frame having a movable engagement therewith, abracket extending from the, disk gang, a connection between thebrackets, abar supported to move in the brackets, scrapers supported bythe bar and a pivoted lever having a con nection with the bar for movingthe scrapers toward and from. the disks.

ALEXIS B. THIELENS Witnesses:

H. B. J ILSON, H. B. WHEELER.

